Smoking, ____ some smokers, might ease their anxiety sometimes, but ____ the addiction caused by their constant practice, it is really hard to give up.
---- What did you do last Sunday, Peter?---- Well, I ______ to see a friend of mine, but in the end I stayed at home doing nothing.
Even though she has many ______, I _______ any less.
We’d better hold more such activities, ______ students can combine study with fun.
How did all these _________?
While ____the dog, you should take care not to ____.Otherwise, it may be dangerous to strangers.